Lock-nut.



D. E. GARRETT.

LOCK NUT.

APPLICATION FILED AUG. 26, 1912,

V 1,067,649 PatentedJfily 15,1913.

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- gum: to filmy/22 5. G60? wi/tmeooeo M aw I flmg onirnn STATES To (171 20710227.- iz m (13 concern Be it known that I. DWIGHT E. GARRETT,

a citizen of the United States, residing at.

novel constructions, arrangements, and combinations of devices which will be fully described hereinafter and then pointed out in the appended claim.

In carrying out the object of the invention generally stated above, it will be understood, of course. that the essential features thereof are susceptible to changes in details and structural arrangements, one preferred. and practical embodiment being shown in the accompanying drawing, iwherein Figure 1 is a side elevation of the nut lock constructed in accordance with the invention. Fig. 2 is a top plan view thereof. Fig. 3 is a vertical sectional view taken on the line 83 of Fig. 1. Fig. 4 is a detail perspective view of the locking plate used in connection with the invention.

Referring more particularly to the accompanying drawing in which like reference characters designate similar parts, 5 indicates a threaflgdbolt of any ordinary well knowncons'fijuchon and having-a longitudinally extending groove 6 for a portion of its length. A nut 7 also of any well known construction is adapted to be threaded upon the bolt 5 and isprovidcd with-a transverse passa as in one side thereof which is adapted to register withthe groovefi llnorder to prevefit theturnin'g of the nut upon the'bolt, a locking plate?) is provided, said plate having an arcuate edge 10 which is adapted to engage the inclined bottom of the passage 8 "whereby said plate may be caused to .ride

into eii'gagement with the groove 6 when the same is moved inwardly. The arcuate edge 10 is beveled as indicated at 11 to provide FATE Nit? IDIVIGHT E. GARRETT. OF DELTA, IOWA.

COPY

LOCK-WUT.

spification of Letters Patent 7: Patented July 15, 1913.

Application filed August 28. 1912.

Serial No. 71754 a knife edge which is adapted to bite into the bolt whereby the same will be securely gripped. In order to retain the plate in looking position the same is provided with the openings 12, 13, and 14,. the opening 13 being adapted to receive a locking pin -15 which extends transversely through an opening 16 formed in the nut 7. It will be seen that the locking plate 9 is now merely pivoted in the passage 8 and is adapted tobe swunginto and out of engagement with the bolt 5 by reason of the arcuate edge 10.' When the locking plate is swung out ofjengagement;

with the bolt, the opening .14 in said plate will be exposed'beyondthe outer face 0f thenut 7 and should it be desired to retain said plate in this position acotter pin 17 may be inserted into said bpening, whereby movement of said plate will be prevented. When i it is desired to prevent rotation of the nut. ,npon the bolt, the cotter pin 17 may be. removed from-theopening 14: and the plate 9 swung into engagement with the bolt 5 soengage the cove when in this position, the opening 12 in the'plate 9 will be-e'xposedbeyond the side of the nut 7 sothat the cotter pin 17 may be inserted thereinto thus securely retaining the plate 9 in a locking position. f p From the foregoing description taken. in connection with the accompanying drawing, it willjbe seen that the invention'contemplates providing a nut lock which is simple in construction thus reducing the cost of manufacture of the same to a minimum and which is durable and effective in carrying out the purpose for which it is designed.

What is claimed is i In a nut lock, the combinationwith a bolt having a longitudinal groove therein, of a nut threaded upon said bolt and having a passage adapted to register with said groove, a locking plate pivoted in said passage-and having alrnife edge adapted to" engage said groove, means extending transversely of said nut for pivotally mounting said pl ate in said passage, said plateibeing formed with openings arranged respectively to-aline with the that the beveled knife edge 11v thereofwill 'outer surfaces of the nut when the plate is in In testimony whereof I affix my signature,

operative or inoperative position, and means in presence of tivo witnesses.

cooperating With either of said openings to DWIGHT E. GARRETT. bear a ainst the adjacent surface of the nut Witnesses: 5 to limlt the movement of the plate in one G. A. BERNARD,

fiirection J. C. R ED.

' Copies of this pet-eat may be ehtained for five cents each, by addressiilg' the Commissioner of Patents,

- I Washington, D. C. 

